Aerial dioxygen activation <i>vs.</i> thiol–ene click reaction within a system
作者:Khokan Choudhuri、Arkalekha Mandal、Prasenjit Mal
DOI:10.1039/c8cc01359d
日期:——
Markovnikov or anti-Markovnikov selective thiol–ene click (TEC) reactions and the synthesis of β-hydroxysulfides via aerial dioxygen activation are prevalent C–S bond forming reactions of styrenes and thiophenols. Herein, by choosing appropriate environments using solvents with additives or neat conditions, any one of these three reactions was achieved exclusively in excellent yields.
Visible-Light-Mediated Organocatalyzed Thiol–Ene Reaction Initiated by a Proton-Coupled Electron Transfer
作者:Vitalij V. Levin、Alexander D. Dilman
DOI:10.1021/acs.joc.9b01331
日期:2019.6.21
A convenient method for performing a thiol–ene reaction is described. The reaction is performed under blue-light irradiation and catalyzed by photoactive Lewis basic molecules such as acridine orange or naphthalene-fused N-acylbenzimidazole. It is believed that the process is initiated by a proton-coupled electron transfer process within the complex between the thiol and the Lewis basic catalyst.
A recyclable ruthenium–rhodium carbon nanotube hybrid was developed for the hydrothiolation of a variety of substrates under environmentally friendly conditions (ethanol as the solvent, room temperature, low catalyst loading and air atmosphere).
Synthesis of Aryl Sulfides by Decarboxylative CS Cross-Couplings
作者:Zhongyu Duan、Sadananda Ranjit、Pengfei Zhang、Xiaogang Liu
DOI:10.1002/chem.200900133
日期:2009.4.6
Without the need for organohalide precursors, the convenient and general synthesis of aryl (or diaryl) sulfides can be achieved by using aryl carboxylic acids and thiols or disulfides for decarboxylative CS cross‐coupling catalyzed by a bimetallic system (see scheme).
Design and Synthesis of Cinanserin Analogs as Severe Acute Respiratory Syndrome Coronavirus 3CL Protease Inhibitors
作者:Qingang Yang、Lili Chen、Xuchang He、Zhenting Gao、Xu Shen、Donglu Bai
DOI:10.1248/cpb.56.1400
日期:——
The severe acute respiratory syndrome (SARS) coronavirus 3CL protease is an attractive target for the development of anti-SARS drugs. In this paper, cinanserin (1) analogs were synthesized and tested for the inhibitory activities against SARS-coronavirus (CoV) 3CL protease by fluorescence resonance energy transfer (FRET) assay. Four analogs show significant activities, especially compound 26 with an IC50 of 1.06 μM.